期刊
2ND CIRP CONFERENCE ON SURFACE INTEGRITY (CSI)
卷 13, 期 -, 页码 203-207出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.procir.2014.04.035
关键词
Silicon Carbide; Plasma; Polishing
资金
- Grants-in-Aid for Scientific Research [25249006] Funding Source: KAKEN
Plasma-assisted polishing (PAP), which combined the irradiation of atmospheric-pressure water vapor plasma and ceria abrasive polishing, was proposed for the finishing of difficult-to-machine materials, such as single crystal SiC, GaN, sapphire and diamond. In the case of PAP was applied to a 4H-SiC-Si face, an oxide layer (SiO2) was generated after plasma irradiation and it was removed by polishing using soft abrasives. In this way, a damage-free and atomically-flat 4H-SiC-Si face could be obtained. In this study, soft abrasive polishing (CeO2) of a plasma-oxidized SiC-Si face and a thermally oxidized SiC-C face was respectively conducted. The generation of a well-ordered one-bilayer step-terrace structure on both of the polished Si face and C face was confirmed by atomic force microscopy (AFM). However, due to the high temperature of thermal-oxidation, many pits were generated on SiC-C face after polishing. (C) 2014 The Authors. Published by Elsevier B.V.
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